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DOS ROM

Address Label Description
6000 DOSINIT DOS function: Initializes DOS
6003 RUNX DOS function: Executes ABS file
6006 LOADX DOS function: Loads ABS file
6009 SELROUT DOS function: PREPARE/CLOSE/OPEN/RESIZE
600C GETNC DOS function: Get next byte from DOSBUF0 and increment bufferpointer
600F DR DOS function: Read physical sector to specified DOSBUF
6012 DW DOS function: Write physical sector from specified DOSBUF
6015 PREP DOS function: Prepare a file
6018 OPEN DOS function: Open a file
601B LOAD DOS function: Load an ABS file
601E RUN DOS function: Load and execute an ABS file
6021 CLOSE DOS function: Close a file
6024 CHOP DOS function: Delete a file
6027 PROTE DOS function: Direct RET
602A POSIT DOS function: Random access initializing
602D READ DOS function: Random access, read logic sector
602E WRITE DOS function: Random access, write logic sector
6033 GET DOS function: Read next byte from buffer
6036 GETR DOS function: Read next byte from buffer with offset
6039 PUT DOS function: Write a byte sequenciality to buffer
603C PUTR DOS function: Write a byte to buffer with offset
603F BSP DOS function: Set offsetposition for buffer to zero (3)
6042 BLKTF DOS function: Fill block with data
6045 TRAP DOS function: Initializes DOS ON ERROR
6048 RENAM DOS function: Change name for open file
604B DOS function: Invalid (goes for few loops)
604E DOS function: Invalid (goes for few loops)
6051 DOS function: Invalid (goes for few loops)
6054 DOS function: Invalid (goes for few loops)
6057 DOS function: Invalid (goes for few loops)
605A DOS function: Invalid (goes for few loops)
605D EXIT DOS function: Close all files and call CMDINIT
6060 DCWAI DOS function: Intialize a drive, wait untill drive is ready, read error/status
6063 DW.0 DOS function: Write sector from DOSBUF0
6066 DR.0 DOS function: Read sector to DOSBUF0
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This page has been created by Sami Rautiainen.
Read the small print. Last updated September 05, 2020.